Perforating apparatus



BEST AVAILABLE COFy H. JOHNS {ON .5:1

Novl 23, 193?h PERFORA TING APPARATUS Sheewkheet l Filed Jan. l5, 1935 EST AVAILABLE COF PERFORATIHG APPARLHTUS F1165?. Jan. l5, 1.935 2 Sheets-Sheet 2 H Mw. 6

Patented Nov. z3, 1931 UNITED STATES PATENT OFFICE PEBFORATING APPARATUS Application January 15, 1935, Serial No. 1,840

3 Claims.

AThis invention relates to perforating apparatus, and more particularly to perforating apparatus for use in calculating machines for punching combinational hole representations of numbers in statistical cards.

It is an object of the present invention to provide a simple, inexpensive and efficient perforatng mechanism.

In accordance with one embodiment, the invention contemplates the provision of means for reading information from a registering or accumulating device which registers the results of calculations as whole numbers, and a perforator controlled by such reading mechanism for perforating combinational hole representations of the numbers registered on theregister or accumulator. The perforating portion of the mechanism comprises a plurality of perforator selectors advanceable through varying distances. Each of the selectors may select for actuation one or more of a plurality of perforators associated therewith and upon actuation the perforators will punch in a card the numbers indicated on the register.

A better understanding of the invention will be had by reference to the following detailed description, when considered in conjunction with the accompanying drawings, wherein Fig, 1'is a plan view of a perforating mechanism comprising one embodiment of the -invention; l

Fig. 2 is a vertical sectional view taken along the line 2-2 of Fig. 1 in the direction of the arrows and having also shown therein schematically the circuit which .controls the operation of the perforator;

Fig. 3 isI a fragmentary horizontal sectional view taken on the line 3--3 of Fig. 2 in the direction of the arrows; l Figs. 4 and 5 are vertical sectional views taken on the lines 4-4 and 5-5, respectively, of Fig. 2 in the direction of the arrows;

Fig. 6 is a schematic view showing the combinational hole system of recordingmumbers;

Fig. l is an enlarged sectional view taken on the line 1-1'of Fig. 3 in the direction of the arrows, and y Fig. 8 is an enlarged fragmentary view of a row of perforators showing the construction vof the heads of the perforators.

Referring now to the drawings wherein like reference' numerals indicate the same parts throughout the several views, the numeral 5 designates a. base plate mounted on suitable standards (not shown) and supporting a register unit designated generally by the numeral 6 and a punch unit designated generally by the numeral 1. The register unit disclosed herein is an electromagnetically controlled register including a continually rotating shaft 8 driven by a motor 9. The shaft 8 supports a pluralityof accumulator units I0, each of which comprises a clutch member `II, keyed to and rotatable with the shaft 8 but slidable longitudinally thereof. Each clutch member II is normally urged to the left (Fig. 2) Aby a clutch lever I2 pivoted at I3 and urged about its pivot in an anti-clockwise direction by a contractile spring I4. The' upper end (Fig. 2) of the clutch lever I2 extends into a slot formed in the periphery of the clutch member I I and, upon energization of an electromagnet 20 which has for its armature the lower end of the lever I2, will be moved to the right to bring clutch member II into engagement with a clutch member 2I, which is fixed against movement axially of the shaft 8, but which is freely rotatable thereupon. A center stop, not shown but of the usual type such as is shown in Figs. 4 and 5 of United StatesPatent 1,952,868, issued March 27, 1934, holds the clutch member 2I against -rotation except when it is engaged by the clutch member II.

vI'heclutch member 2lA has secured thereto a sequence switch 22 and a number wheel 23. Each sequence switch 22 (Figs. 4 and 5) is insulated from the shaft 8 and comprises a pair of disks 24 and 25 of conducting material electrically interconnected by rivets 26 and mounted upon opposite sides of a disk 21 of insulating material.

There are three brushes 28, 29and 30 associated with each sequence switch 22. The brush 29 is always in contact with the disk 24 and is electrically connected with the disk 25 by means of the rivets 26. Brush 29 engages the disk 24 at all times except when the disk is in its normal or zero position, that is, when the number wheel 23 indicates zero. Ihe brush 30 engages the disk 25 only at the 9 position. 'I'he circuits controlled by the sequence switches 22 will be described more `in detail hereinafter in connection with the description of the operation of the device.

The shaft 8 through gearing 40 drives a shaft 4I to which is fixed a clutch member 42 forming a part of a single revolution clutch indicated generally by thenumeral 43. The single revolution clutch 43 comprises in addition to the clutch member 42, a clutch member 44 slidably mounted on a shaft 45 but keyed to '/rotatewlth the shaft 45. The clutch member/ 44 is normally urged into engagement with the clutch member 42 by a spring 45 and is provided with a cam slot 41 into which extends a camming pin 48 mounted on the armature 49 of an electromagnet 50. Electromagnet 50 has one side of its winding connected to ground at 5| and the other side of its winding is connected to a contact of a manually operable key 52 the other contact of which is connected to grounded battery at 53.

From the foregoing it will be apparent that momentary operation of the key 52 will connect grounded battery at 53 through the winding of the electromagnet 50 to ground at 5|, causing the electromagnet 50 to attract its armature 49 and withdraw the camming pin 48 from the carn slot 41 whereupon the spring 46 will move the clutch member 44 into engagement with the clutch member' 42 and upon release of the key 52 the camming pin 4B will be permitted to drop back into the slot 41 to cam the clutch member 44 out of engagement with the clutch member 42 at the end of a single rotation of the shaft 45. It will be apparent that each time the key 52 is operated momentarily a single revolution will be imparted to the shaft 45.

Mounter upon the shaft 45 are a pair of sequence switches 90 and El. These switches 60 and 9| are similar to the switches 22, from which they differ only in the position of the contacting surfaces and arrangement of brushes. The sequence switch 60 has associated therewith a brush 62 which engages a conducting portion of the sequence switch 60 in lall positions thereof except normal position. The brush 62 is connected to all of the brushes 28, and as soon as the shaft 45 is moved out of normal position the brush 52 will connect ground at 63 through a brush 54 always in contact with the conducting portion of the sequence switch 60 to the brushes 28 associated with the sequence switches 22.

The sequence switch 5| has three brushes 65, SB, and 61, associated therewith and serves to connect grounded battery at 98 through the brush 55 always in contact with a conducting portion of the sequence switch 6| to the brushes G6 and G1 as soon as the shaft 45 moves out of normal position, since the brushes 55 and 51 engage a conducting portion of the sequence switch 6| at all positions except normal. The brush 61 is connected to one side of the winding of each of the electromagnets 20 and the brush 66 is connected to the winding of each of a plurality of electromagnets 15.

The electromagnets 15 control the operation of the punch unit 1 and have the other side of their windings connected severally te the brushes 30 associated with the sequence switches 22. The electromagnets 15 are mounted in an arcuate staggered relation in a housing 16, being supported directly upon a plurality of bars 11 extending longitudinally of the housing 16 and secured to the ends thereof. A plurality of rods 18 equal in number to the number of the bars 11 serve as fulcrums about which armatures 19 associated with the electromagnets 15 may be rocked upon energization of the electromagnets 15.

The shaft 45 through gearing 84 drives a shaft which constitutes the main drive shaft for the punch unit and which is suitably journaled beneath the base plate 5. There are mounted upon the ends of the shaft 85 a pair of cams 86 each having cam grooves 81 and 88 therein, whereby the moving parts of the punch are actuated. A cam roller is positioned in the cam groove 88 and is mounted upon the end of a rack 89. The rack 89 meshes with and drives a gear 9| xed to a shaft 92. The shaft 92 also has a gear segment 93 xed thereto which extends longitudinally of the housing 'I6 and is associated with a plurality of selector bars 94 which have teeth 95 thereon adapted to engage with the teeth of the gear segment 93.

There are a plurality of selector bars 94, one being provided for each column of cards to be perforated and having associated therewith an electromagnet 15 and cooperating equipment. rllhe right end of the selector bars 95 (Fig. 2) are supported upon a bar 96 extending longitudinally of the housing 16 and are so positioned as normally to be out of engagement with the teeth of the gear segment 99. Upon energization oi an electromagnet 15 its associated bar is lifted into engagement with the teeth of the gear segment 93 by one of a plurality of bell crank levers 91 which are normally urged to rotate about their pivot 98 by contractile springs 99 and which have an arm thereof positioned in the path of the armatures 19 of electromagnets 15. The underside of the selector bars 94 are cut out at |03 so that when the bars are in normal position they are out of engagement with the gear segment 93, but upon momentary energization of an electromagnet 15 its associated selector bar will be raised into engagement with the teeth of a gear segment 93 and as soon as the selector bar is advanced a. very small distance by the gear segment, the underside thereof will take a position on top of the bar 9G so that the release of the electromagnet 15 will not permit the bar to fall out of engagement with the gear segment until the gear segment drives the selector bar forward and then back to its normal position. As any or all of the selector bars approach their normal position in moving toward the right (Fig.

2) a cam arm |04 formed on the underside of each selector bar 94 will engage the inclined left hand surface (Fig. 2) of the bar 95 to cam the teeth 95 out of engagement with the teeth of the gear segments 93.

The left hand end (Fig. 2) of each selector bar 94 has an enlarged portion |05 which serves as a hammer for actuating perforating pins |06, and has pivot/ed thereto a toothed bar |01. The perforating pins |06 are mounted in 45 columns of 5 pins to a column and are adapted to perforate by combinational representations any one of the digits l to 9 in any column. The perforating pins |05 are mounted in apertures |00 and |09 in a guide box l0 which rests upon a die plate mounted directly upon the base 5. The die plate is provided with a plurality of apertures |2 in direct vertical alignment with the apertures |08 and |09 of the guide box I0, and the base 5 is cut out as shown at ||3 to permit scrap formed in punching cards to fall into a suitable receptacle (not shown). A slot ||4 is formed between the die plate and the guide box ||0 to permit the insertion of card I5 to be perforated. In the ernbodiment of the invention disclosed herein only one half of the card is under control of the punch, but it will be obvious that suitable card stops could be provided to permit punching in either or both halves of the card without departing from the scope of the invention.

The upper ends of the perforating pins |06 are provided with heads 6, the left hand pin |08 has a circular head and the four right hand pins have semi-circular heads. All of the pins |06 are slotted to receive stripper bars |25 which extend longitudinally of the machine and preventl the pins from turning in the apertures |08. 'I'he stripper bars are secured at their ends to a ram |26 4 cams 86 the bell cranks |29 will be rocked about their pivots |30 to move the ram |26 downwardly and then upwardly at a predetermined time in the cycle of operation of the shaft 85.

The underside of the ram |26 has secured thereto a. bar |32 which extendsv into slots |33 in the toothed bars |01 and holds the bars up against the underside of the ram |26. 'I'he right hand end (Fig. 2) of the bars |01 and the left hand end of the selector bar 94 are urged upwardly and into engagement with the lower surface of the ram |26 by pins |34 mounted in holes |35 in the guide box I0 and urged upwardly by compression springs |46 also positioned in the holes |35.

The toothed bar |01 has its teeth |36, |31, |38 and |39 so spaced that when the selector bar 94 and toothed bar |01 are moved to the left 1, 3, 5 or '7 places, `the teeth will not engage the head of the left hand pin |06; whereas, when the bars 94 and |01 are moved to the left two spaces the tooth |36 will be in direct vertical alignment with the left hand pin |06, when the bars are moved four spaces to the left the pin |31 will be in direct vertical alignment with the left hand pin |06, when the bars are moved 6 spaces to the left the tooth |38 will be in direct vertical alignment with the left hand pin |06 and when the bars 94 and |01 are moved to the left eight spaces the tooth |39 will be in direct vertical alignment with the left hand perforating pin |06. The enlarged portion |05 of the selector bar 94, will, when the vselector bar is moved either one or two places to the left, have a portion thereof in vertical alignment with the rst pin |06 at the right (Fig. 2) when the selector bar is moved either three or four places to the left (Fig. 2), the enlarged portion |05 thereof will be in vertical alignment with the second perforating pin |06 from the right. When the bars are moved either five or six places to the left the portion |05 will be in alignment with the third perforating pin |06 from the left, when the bars aremoved either seven or eight places to the left the portion |05 will be in vertical alignment with the fourth perforating pin`|06 from the left,

' and when the selector bar 94 is moved`9 places to the left the enlarged portion |05 thereof will be in vertical alignment with the head of perforating pin |06 at the extreme left of the group of perforating pins.

The system of recording numbers has been shown in Fig. 6 wherein the numbers 1`to 9 are shown punched in successive rows from left to right.

There are provided 45 columns of perforating pins, each having. a selector `bar 94 and toothed bar |01 individual thereto, associated with each of which there is a bell crank 91 and an electromagnet 15 as well as a register unit comprised of a sequence switch 22 and a number wheel 23 with their appurtenances.

It is believed that a better understanding of the invention will be had by assuming that the register units shown in Fig. 2, have entered therein the digits 9, '7,v 6, 2, as whole numbers. The input circuits of the registers have not been shown since they would unduly complicate the disclosure and do not pertain to this invention; but they may be of' any known type.

When it is desired to clear the register unit 6 and to punch, on a statistical card, combinational hole representations of the numbers registered in the register unit, this may be accomplished by depressing the key 52, thereby to close the circuit for operating electromagnet 50. Electromagnet 50, upon operating, will operate the single revolution clutch 43 thereby causing the shaftv 4|, through the clutch 43, to drive the shafts 45 and 85 through one complete revolution. As

the shaft 45 moves out of normal, the brush 62 will pick up the ground at 63 through sequence switch 60 to place ground on all of the brushes 28 and simultaneously therewith grounded battery at 68 will be connected through sequence switch 6| to the windings of all of the electromagnets 15 and to one side of the windings of all of electromagnets 20. The sequence switches 22 at this time are all out of normal position and therefore each of their associated brushes 29 will be engaging the disks 24 and since ground is connected to the disks 24 through brush 28 and sequence switch 60, the electromagnets 20 will all be energized to move the clutch members into engagement with the clutch members 2| to rotate the sequence switches and number wheels until they arrive in normal or zero position; whereupon the circuits to the electromagnets 20 will be broken as each number wheel reaches zero position due to the brush 29 engaging the disk 21 of insulating material. As each sequence switch passes through its 9 position in its travel forward to zero, the ground from sequence switch 60 through brushes 62 and 28 will be -connected left (Fig. 2) of the register unit 6, and therefore the selector bar 94 and its associated toothed bar 91 will be advanced 9 positions, or to the extreme left hand position (Fig. 2) thereby to bring the enlarged portion |05 of the selector bar over the head of the extreme left hand pin 06 and to move the teeth |36, |31, |38 and |39 beyondthe last peforating pin |06 at the left (Fig. 2).

While the selector bar 94 associated with the left hand sequence switch 22 (Fig. 2) was traveling to the left and after it had traveled two places, the electromagnet 15 associated with the second sequence switch 22 from the left (Fig. 2) would be energized due to the completion of a circuit similar to that described in connection with the extreme left hand 'sequence switch 22, and similar operations would take place in connection with the two sequence switches 22 at the right (Fig. 2). Thus, since the segmental gear 93 is common to all of the selector bars 94 and the selector bars are moved into engagement with the segmental gear at intervals dependent upon the number registered on` the associated number representative of the digit 7, the 3rd and 5th pins from the right representative of the digit 6, and the lst and th pins from the right representative of the digit 2 in the columns associated with the respective number wheels. The operation of the selector bars for attaining this result has been set forth in connection with the detailed description thereof and need not be repeated here.

'I'he setting up of the selector bars occurs in the rst half revolution of the shafts 45 and 85 and as soon as all the selector bars which are to be advanced have been moved to their selected positions, the ram i26 will be moved downwardly due to the bell crank lever |29 being rocked about its pivot 130 by the cam roller I3! in a cam groove 81. The ram will then be raised due to the conguration oi the cam groove 81 and the rack 89 will be moved downwardly to return the selector bars to their normal position, and as each selector bar arrives in normal position, it will be cammd out of engagement With the segmental gear 93 by the cam arm |04 engaging the bar 96.

'I'he register Will in this manner be cleared to zero simultaneously with the setting up of the punching mechanism to punch in a record by combinational hole representations, the numbers which had been stored in the register as whole numbers and the machine will be ready for new information to be put into the register.

What is claimed is: 1. In a perforating apparatus, a plurality oi punches arranged in columns of five to a column and designed to be operated to punch combinations of holes representative of the digits one to nine, and a selector associated with a column of punches movable to any one of nine positions and adapted to select a different punch in each of positions one, three, tive, seven and nine and to select one punch and one of the other four punches in the other four positions respectively.

2. In a perforating apparatus, a plurality of punches arranged in columns of ve to a column and adapted to be operated to punch combinations of holes representative of the digits one to nine, a selector associated with a column of punches movable to any one of nine positions and adapted to select a diierent punch in each of positions one, three, ve, seven and nine and to select one punch and one of the other four punches in the other four positions respectively, and an electromagnet for controlling the position to which a selector is moved.

3. In a combinational hole punch, a row of ilve punch pins, an elongated selector device, means for moving said device to any one of nine positions over said row, means carried by said device for selecting and striking the same pin in alternate positions of said device, means carried by said device for selecting and striking one or another of said pins at every position of the device,

and means for actuating said device transversely.

HAROLD G. JOHNSIOME. 

